Pouring box



Nov. 2, 1943. J. MARTIN- ET AL POURING BOX Filed July 7, 1941 .r Mm u 5ME LW HE F r 5 .H..

Patented Nov. 2, 1943 POURING BOX James L. Martin, Lowell, and Harold B.Wessenger, Medford, Mass.

Application July 7, 1941, Serial No. 401,324

(Granted under the act of March 3, 1883, as

amended April 30, 1928; 370 0. G. 757) 1 Claim.

The invention described herein may be manufactured and used by or forthe Government for governmental purposes, without the payment to use ofany royalty thereon.

This invention relates to metal casting and in articular to a pouringbox therefor. While the ouring box described herein was developed inconnection with centrifugal casting and has particular referencethereto, it will be understood that it may be employed in other types ofcasting as well.

Replacement of brick lining in pouring boxes is an item of considerabletime and expense. It has been noted, however, that only certain portionsof the brick lining, namely those in the lower portions of the box needfrequent replacement, due to the longer dwell of the molten metal, thosein the top portion remaining in serviceable condition for at least 20and often as high as 50 heats. This fact is utilized to advantage bymaking the pouring box in sections so that the upper part may be removedintact to permit renovation of the lower part. V

It is therefore an object of the invention to provide a pouring box formetal casting which will afford ease and economy of lining replacement.

It is a further object of the invention to provide a sectional pouringbox to permit partial lining replacement.

To these and other ends, the invention consists in the construction,arrangement and combination of elements described hereinafter andpointed out in the claim forming a part of this specification.

A practical embodiment of the invention is illustrated in theaccompanying drawing wherein:

Figure 1 is an elevational view in section of the pouring box of theinvention.

' Figure 2 is a similar view of a modification of a pouring box, and

Figure 3 is an end view partly in section of the pouring box of Figure2.

Referring to the drawing by characters of reference, there is shown apouring box composed of a lower section I having a sand filling 2 and afirebrick lining 3. A sleeve brick 4 forms an efilux orifice and apouring spout, indicated generally at 5 is carried by lower section l'.

The upper section 6 is simply lined with firebrick. Angles and 8 arecarried by the upper and lower sections, respectively, of the pouringbox, and form a convenient means for bolting the sections together,although it will be understood that other well known forms of attachmentmay be readily employed to join the sections. Further angles 9 areprovided at the rim of the upper section to form a lip for handlingpurposes and for accommodating auxiliary parts. Angle bars 20 on theinside serve to space the brick in the upper from that in the'lowerportion.

In Figure 2 is shown a pouring box combining bottom pour and horizontalflow through a curved discharge orifice I 0. A stopper ll of graphite onthe end of a rod 2| having a firebrick jacket 22 is rigged to the uppersection 6 through a double rocker arm l2 pivoted in an upright supportl3 and urged manually by a wheel l4 fixed to a shaft [5 having athreaded unit 16 turning in a threaded bushing ll fixed to the upperportion 6 of the pouring box. Carrying the thrust to the rocker arm is arod I8 which is rotatably mounted in the threaded unit Hi. The system isbraced by additional bushings l9 carried by the upper box section 6. Theprovision of separable pouring box sections oifers additional advantagesin pouring boxes having stoppers, since the latter are thereby easilyremoved integrally with the box top to permit work on the bricking.

We claim:

A two-part pouring box for molten metal comprising separable upper endlower sections, said upper section having vertical walls and beingdesigned to hold the molten metal in the normal upright position of thebox, said lower section having a pouring spout therein, means couplingthe sections in aligned relationship, said upper section comprising ashelf protruding inwardly of the box and replaceable refractory liningsin each of the sections, the lining in theupper section resting on thesaid shelf, said lower section being subjected to longer exposure frommolten metal than the upper section during a pouring operation.

JAMES L. MARTIN. HAROLD B. WESSENGER.

CERTIFICATE OF CORRECTION. Patent No. 2,555,115. November 2, 1915.

JAMES L.. MARTIN, ET AL It is hereby certified that error appears in theprinted specification of the above numbered patent requiring correctionasfollowe: Page 1, first column, line LL, for "use" read --us and thatthe said Letters Patent should be read with this correction therein thatthe same ay Confirm to the record of the case in the 'Patent Office.

Signed and sealed this 7th day of December, A. D. 19h5.

Henry Van Arsdale,

(Seal) Acting Commissioner of Patents.

